Skull Crusher

Muscles Activated

Muscle Group	Muscles
Primary Muscles	Tricep, Bicep
Secondary Muscles	None
Stabilizer Muscles	Deltoids, Abdominal External Oblique
Grip Muscles	Forearm Flexors

Muscle Group

Muscles

Primary Muscles

Tricep, Bicep

Secondary Muscles

None

Stabilizer Muscles

Deltoids, Abdominal External Oblique

Grip Muscles

Forearm Flexors

Skull Crusher Average Weight [1RM]

Level
Beg.	15 kg (34 lb)	6 kg (13 lb)
Nov.	27 kg (60 lb)	13 kg (28 lb)
Int.	43 kg (96 lb)	22 kg (49 lb)
Adv.	63 kg (140 lb)	34 kg (76 lb)
Pro	86 kg (189 lb)	48 kg (107 lb)

Level

Beg.

15 kg
(34 lb)

6 kg
(13 lb)

Nov.

27 kg
(60 lb)

13 kg
(28 lb)

Int.

43 kg
(96 lb)

22 kg
(49 lb)

Adv.

63 kg
(140 lb)

34 kg
(76 lb)

Pro

86 kg
(189 lb)

48 kg
(107 lb)

Note: These standards are based on the average lifter and may vary depending on individual factors such as body weight and age. More detailed data is provided below.

Skull Crusher Standard (lb)

By Bodyweight
By Age

Table by Male and Bodyweight [1RM]

BW	Beg.	Nov.	Int.	Adv.	Pro
110	13	29	52	83	118
120	17	35	60	92	129
130	21	40	67	101	139
140	25	46	74	109	149
150	29	51	81	117	159
160	33	56	87	125	168
170	37	61	94	133	177
180	41	67	100	141	186
190	45	72	106	148	194
200	49	77	113	155	202
210	53	82	118	162	210
220	57	86	124	169	218
230	60	91	130	175	225
240	64	96	135	182	233
250	68	100	141	188	240
260	72	105	146	194	247
270	75	109	151	200	253
280	79	113	156	206	260
290	82	118	161	212	266
300	86	122	166	217	273
310	89	126	171	223	279

Table by Male and Age [1RM]

Age	Beg.	Nov.	Int.	Adv.	Pro
15	29	51	82	119	161
20	33	59	93	136	184
25	34	60	96	140	189
30	34	60	96	140	189
35	34	60	96	140	189
40	34	60	96	140	189
45	32	57	91	132	179
50	30	54	85	124	168
55	28	50	79	115	156
60	26	45	72	105	142
65	23	41	65	95	128
70	21	37	58	85	115
75	19	33	52	76	103
80	17	29	47	68	92
85	15	26	42	61	83
90	13	24	38	55	74

Table by Female and Bodyweight [1RM]

BW	Beg.	Nov.	Int.	Adv.	Pro
90	8	19	37	60	87
100	9	21	39	63	91
110	10	23	42	66	95
120	11	25	44	69	98
130	12	26	46	72	102
140	14	28	48	75	105
150	15	29	50	77	108
160	16	31	52	79	110
170	17	32	54	81	113
180	18	34	56	84	115
190	19	35	57	86	118
200	19	36	59	88	120
210	20	37	61	89	122
220	21	38	62	91	124
230	22	40	63	93	126
240	23	41	65	95	128
250	24	42	66	96	130
260	24	43	67	98	132

Table by Female and Age [1RM]

Age	Beg.	Nov.	Int.	Adv.	Pro
15	11	24	42	64	91
20	13	27	48	74	104
25	13	28	49	76	107
30	13	28	49	76	107
35	13	28	49	76	107
40	13	28	49	76	107
45	13	26	46	72	101
50	12	25	44	67	95
55	11	23	40	62	88
60	10	21	37	57	80
65	9	19	33	51	72
70	8	17	30	46	65
75	7	15	27	41	58
80	7	14	24	37	52
85	6	12	21	33	47
90	5	11	19	30	42

Note: The dumbbell weights listed in the table refer to the weight of a single dumbbell. Standard gym barbells typically weigh 20 kg / 44lbs.

About Tables

Level	Description	Percentile
Beg.	Adopt correct form and continue with your workouts for over a month.	Bottom 5%
Nov.	Continue with your workouts consistently for over 6 months.	Top 80%
Int.	Continue with your workouts consistently for over 2 years.	Top 50%
Adv.	Continue with your workouts consistently for over 5 years.	上位 20%
Pro	Specialize in the workout routine for over 5 years.	Top 5%

Level

Description

Percentile

Beg.

Adopt correct form and continue with your workouts for over a month.

Bottom 5%

Nov.

Continue with your workouts consistently for over 6 months.

Top 80%

Int.

Continue with your workouts consistently for over 2 years.

Top 50%

Adv.

Continue with your workouts consistently for over 5 years.

上位 20%

Pro

Specialize in the workout routine for over 5 years.

Top 5%

Estimated Calorie Burn per 10 Minutes

Intensity	Calories Burned
Easy	🔥 20-30 Calories
Medium	🔥 30-45 Calories
Hard	🔥 45-60 Calories
Max	🔥 60-80 Calories

Intensity

Calories Burned

Easy

🔥 20-30 Calories

Medium

🔥 30-45 Calories

Hard

🔥 45-60 Calories

Max

🔥 60-80 Calories

Note：These are estimated values for an average adult. Actual calorie burn may vary based on individual factors such as weight, muscle mass, and exercise form.

Intensity Levels：

Easy：Warm-up sets or recovery work
Medium：Standard workout sets
Hard：Heavy lifting or higher volume
Max：Maximum effort or AMRAP sets

Muscles Activated

Skull Crusher Average Weight [1RM]

Skull Crusher Standard (lb)

Table by Male and Bodyweight [1RM]

Table by Male and Age [1RM]

Table by Female and Bodyweight [1RM]

Table by Female and Age [1RM]

About Tables

Estimated Calorie Burn per 10 Minutes

Other Workouts

Whole Body Workouts

Chest Workouts

Back Workouts

Shoulder Workouts

Arm Workouts

Leg Workouts

Core Workouts

BW	Beg.	Nov.	Int.	Adv.	Pro
110	13	29	52	83	118
120	17	35	60	92	129
130	21	40	67	101	139
140	25	46	74	109	149
150	29	51	81	117	159
160	33	56	87	125	168
170	37	61	94	133	177
180	41	67	100	141	186
190	45	72	106	148	194
200	49	77	113	155	202
210	53	82	118	162	210
220	57	86	124	169	218
230	60	91	130	175	225
240	64	96	135	182	233
250	68	100	141	188	240
260	72	105	146	194	247
270	75	109	151	200	253
280	79	113	156	206	260
290	82	118	161	212	266
300	86	122	166	217	273
310	89	126	171	223	279

Age	Beg.	Nov.	Int.	Adv.	Pro
15	29	51	82	119	161
20	33	59	93	136	184
25	34	60	96	140	189
30	34	60	96	140	189
35	34	60	96	140	189
40	34	60	96	140	189
45	32	57	91	132	179
50	30	54	85	124	168
55	28	50	79	115	156
60	26	45	72	105	142
65	23	41	65	95	128
70	21	37	58	85	115
75	19	33	52	76	103
80	17	29	47	68	92
85	15	26	42	61	83
90	13	24	38	55	74

BW	Beg.	Nov.	Int.	Adv.	Pro
90	8	19	37	60	87
100	9	21	39	63	91
110	10	23	42	66	95
120	11	25	44	69	98
130	12	26	46	72	102
140	14	28	48	75	105
150	15	29	50	77	108
160	16	31	52	79	110
170	17	32	54	81	113
180	18	34	56	84	115
190	19	35	57	86	118
200	19	36	59	88	120
210	20	37	61	89	122
220	21	38	62	91	124
230	22	40	63	93	126
240	23	41	65	95	128
250	24	42	66	96	130
260	24	43	67	98	132

Age	Beg.	Nov.	Int.	Adv.	Pro
15	11	24	42	64	91
20	13	27	48	74	104
25	13	28	49	76	107
30	13	28	49	76	107
35	13	28	49	76	107
40	13	28	49	76	107
45	13	26	46	72	101
50	12	25	44	67	95
55	11	23	40	62	88
60	10	21	37	57	80
65	9	19	33	51	72
70	8	17	30	46	65
75	7	15	27	41	58
80	7	14	24	37	52
85	6	12	21	33	47
90	5	11	19	30	42

BW	Beg.	Nov.	Int.	Adv.	Pro
110	13	29	52	83	118
120	17	35	60	92	129
130	21	40	67	101	139
140	25	46	74	109	149
150	29	51	81	117	159
160	33	56	87	125	168
170	37	61	94	133	177
180	41	67	100	141	186
190	45	72	106	148	194
200	49	77	113	155	202
210	53	82	118	162	210
220	57	86	124	169	218
230	60	91	130	175	225
240	64	96	135	182	233
250	68	100	141	188	240
260	72	105	146	194	247
270	75	109	151	200	253
280	79	113	156	206	260
290	82	118	161	212	266
300	86	122	166	217	273
310	89	126	171	223	279

Age	Beg.	Nov.	Int.	Adv.	Pro
15	29	51	82	119	161
20	33	59	93	136	184
25	34	60	96	140	189
30	34	60	96	140	189
35	34	60	96	140	189
40	34	60	96	140	189
45	32	57	91	132	179
50	30	54	85	124	168
55	28	50	79	115	156
60	26	45	72	105	142
65	23	41	65	95	128
70	21	37	58	85	115
75	19	33	52	76	103
80	17	29	47	68	92
85	15	26	42	61	83
90	13	24	38	55	74

BW	Beg.	Nov.	Int.	Adv.	Pro
90	8	19	37	60	87
100	9	21	39	63	91
110	10	23	42	66	95
120	11	25	44	69	98
130	12	26	46	72	102
140	14	28	48	75	105
150	15	29	50	77	108
160	16	31	52	79	110
170	17	32	54	81	113
180	18	34	56	84	115
190	19	35	57	86	118
200	19	36	59	88	120
210	20	37	61	89	122
220	21	38	62	91	124
230	22	40	63	93	126
240	23	41	65	95	128
250	24	42	66	96	130
260	24	43	67	98	132

Age	Beg.	Nov.	Int.	Adv.	Pro
15	11	24	42	64	91
20	13	27	48	74	104
25	13	28	49	76	107
30	13	28	49	76	107
35	13	28	49	76	107
40	13	28	49	76	107
45	13	26	46	72	101
50	12	25	44	67	95
55	11	23	40	62	88
60	10	21	37	57	80
65	9	19	33	51	72
70	8	17	30	46	65
75	7	15	27	41	58
80	7	14	24	37	52
85	6	12	21	33	47
90	5	11	19	30	42

BW	Beg.	Nov.	Int.	Adv.	Pro
110	13	29	52	83	118
120	17	35	60	92	129
130	21	40	67	101	139
140	25	46	74	109	149
150	29	51	81	117	159
160	33	56	87	125	168
170	37	61	94	133	177
180	41	67	100	141	186
190	45	72	106	148	194
200	49	77	113	155	202
210	53	82	118	162	210
220	57	86	124	169	218
230	60	91	130	175	225
240	64	96	135	182	233
250	68	100	141	188	240
260	72	105	146	194	247
270	75	109	151	200	253
280	79	113	156	206	260
290	82	118	161	212	266
300	86	122	166	217	273
310	89	126	171	223	279

Age	Beg.	Nov.	Int.	Adv.	Pro
15	29	51	82	119	161
20	33	59	93	136	184
25	34	60	96	140	189
30	34	60	96	140	189
35	34	60	96	140	189
40	34	60	96	140	189
45	32	57	91	132	179
50	30	54	85	124	168
55	28	50	79	115	156
60	26	45	72	105	142
65	23	41	65	95	128
70	21	37	58	85	115
75	19	33	52	76	103
80	17	29	47	68	92
85	15	26	42	61	83
90	13	24	38	55	74

BW	Beg.	Nov.	Int.	Adv.	Pro
90	8	19	37	60	87
100	9	21	39	63	91
110	10	23	42	66	95
120	11	25	44	69	98
130	12	26	46	72	102
140	14	28	48	75	105
150	15	29	50	77	108
160	16	31	52	79	110
170	17	32	54	81	113
180	18	34	56	84	115
190	19	35	57	86	118
200	19	36	59	88	120
210	20	37	61	89	122
220	21	38	62	91	124
230	22	40	63	93	126
240	23	41	65	95	128
250	24	42	66	96	130
260	24	43	67	98	132

Age	Beg.	Nov.	Int.	Adv.	Pro
15	11	24	42	64	91
20	13	27	48	74	104
25	13	28	49	76	107
30	13	28	49	76	107
35	13	28	49	76	107
40	13	28	49	76	107
45	13	26	46	72	101
50	12	25	44	67	95
55	11	23	40	62	88
60	10	21	37	57	80
65	9	19	33	51	72
70	8	17	30	46	65
75	7	15	27	41	58
80	7	14	24	37	52
85	6	12	21	33	47
90	5	11	19	30	42